update itertools: 13.0.0 -> 14.0.0

Summary:
[Changes](https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md) to be aware of, with [971](rust-itertools/itertools#971) as my favourite:

 {F1974159737}

Differential Revision: D67751950

fbshipit-source-id: d5e39b7c685840b40aa7ba1b5015e8ccaea32b72

Author: ship-it-ship-it

Cargo.lock

@@ -19,7 +19,7 @@ fnv = "1.0"
 globset = { version = "0.4.13", features = ["serde1"] }
 ignore = "0.4"
 indexmap = { version = "2.2.6", features = ["arbitrary", "rayon", "serde"] }
-itertools = "0.13.0"
+itertools = "0.14.0"
 log = { version = "0.4.22", features = ["kv_unstable"] }
 measure_time = "0.8.2"
 monostate = "0.1.8"